Scientific American. DECEMBER 10, 1898. ] 373 lor this: test has always been limited by the gross na- THE NEW 2,500 HORSE POWER TURBINES AT A NEW VISCOSIMETER. ture of the results obtained, and more especially since All who have given time to the subject of oil test- NIAGARA. the recent… … standard at the top and into the center of the weight in the middle, tapering down to 8 inches. The turbines at the other extremity. The paddles stand at right make 250 revolutions per minute, and they are sup- angles to their adjacent neighbors as shown. ported on self-oiling bearings of 30 inches…
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